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Displaying records 211 to 217.
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211. Wake Fields in the Electron Gas, Including Transverse Response
Topic: Physics
Published: 12/1/2006
Authors: Eric J Cockayne, Zachary H Levine
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854181

212. Wavelength References for Optical Interferometry
Topic: Physics
Published: 6/12/2005
Authors: Richard W Fox, Leo W. Hollberg
Abstract: We are exploring air wavelength references useful for interferometry. Femtosecond comb frequency measurements determine mode wavelengths of a stable optical cavity in vacuum, and subsequently a tunable laser is locked to the modes in air.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=30063

213. Wavelengths, Transition Probabilities, and Energy Levels for the Spectra of Barium (Ba III through Ba LVI)
Topic: Physics
Published: 11/19/2010
Authors: Jean Ellen Sansonetti, John J Curry
Abstract: Energy levels, with designations and uncertainties, have been compiled for the spectra of barium (Z=56) ions from doubly-ionized to hydrogen-like. Wavelengths with classifications, intensities, and transition probabilities are also tabulated. In addi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904125

214. Weak Localization, Spin Relaxation, and Spin-Diffusion: Crossover Between Weak and Strong Rashba Coupling Limits
Topic: Physics
Published: 9/17/2014
Authors: Yasufumi Araki, Guru Bahadur S Khalsa, Allan H. MacDonald
Abstract: Disorder scattering and spin-orbit coupling are together responsible for the diffusion and relaxation of spin-density in time-reversal invariant systems. We study spin-relaxation and diffusion in a two-dimensional electron gas with Rashba spin-orbit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916181

215. Weight Functions for Biases in Atomic Frequency Standards
Topic: Physics
Published: 10/5/2008
Author: Jon Hardy Shirley
Abstract: We present a unified treatment of frequency-standard biases that vary significantly during the time of measurement. We introduce three time-dependent weight functions built from the solution of the unperturbed equations of motion for a two-level sys ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900983

216. Weight Functions for Biases in Atomic Frequency Standards
Topic: Physics
Published: 3/1/2010
Author: Jon Hardy Shirley
Abstract: Many perturbations that affect atomic frequency standards vary during the period of measurement. To include this time variation, we introduce three time-dependent weight functions built from the solution of the unperturbed equations of motion of a t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902850

217. Yb Optical Lattice Clock
Topic: Physics
Published: 11/23/2008
Authors: Nathan D. Lemke, Andrew D Ludlow, Zeb Barber, N Poli, C.W. Hoyt, Long-Sheng Ma, Jason Stalnaker, Christopher W Oates, Leo Hollberg, James C Bergquist, A. Brusch, Tara Michele Fortier, Scott A Diddams, Thomas Patrick Heavner, Steven R Jefferts, Thomas Edward Parker
Abstract: We describe the development and latest results of an optical lattice clock based on neutral Yb atoms, including investigations based on both even and odd isotopes. We report a fractional frequency uncertainty below 10^u-15^ for ^u171^Yb.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901008



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